WO2000014704A1 - Technique de formation d'image a balayage de spot et appareil correspondant - Google Patents

Technique de formation d'image a balayage de spot et appareil correspondant Download PDF

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Publication number
WO2000014704A1
WO2000014704A1 PCT/CN1999/000111 CN9900111W WO0014704A1 WO 2000014704 A1 WO2000014704 A1 WO 2000014704A1 CN 9900111 W CN9900111 W CN 9900111W WO 0014704 A1 WO0014704 A1 WO 0014704A1
Authority
WO
WIPO (PCT)
Prior art keywords
light spot
light
image
brightness
turntable
Prior art date
Application number
PCT/CN1999/000111
Other languages
English (en)
Chinese (zh)
Inventor
Yingui Zhou
Original Assignee
Yingui Zhou
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yingui Zhou filed Critical Yingui Zhou
Priority to AU52768/99A priority Critical patent/AU5276899A/en
Publication of WO2000014704A1 publication Critical patent/WO2000014704A1/fr

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/005—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes forming an image using a quickly moving array of imaging elements, causing the human eye to perceive an image which has a larger resolution than the array, e.g. an image on a cylinder formed by a rotating line of LEDs parallel to the axis of rotation

Definitions

  • the invention relates to a light spot scanning imaging method and a device thereof in the technical field of image display. Background technique
  • An object of the present invention is to provide a light spot scanning display imaging method with good image quality and a device thereof.
  • the present invention is implemented in the following ways:
  • the light spot scanning imaging method provided by the present invention is characterized in that light spots are set on different radii of the same circle center, so that the light spots rotate around the circle center, and the brightness of the rotated light spots at different positions synchronously corresponds to the brightness of corresponding pixel points of the image And imaging; the more light spots set in the radial direction, the higher the resolution of the scanned image; multiple light spots are set on each concentric circle, and at the same rotation speed, the more light spots are distributed on the concentric circle, every second The more times the clock scans the image, the stable image can be displayed when the speed of the rotation scan is fast enough; the red, green, and blue light spots can be scanned to display a full-color image, and the light spots emit light Changes in the intensity or the change in the length of time can change the brightness and darkness of the pixels of the image; the light points rotating around the same center are a group, and a group of
  • the device of the present invention includes a light spot, a light spot brightness controller, and a light spot rotation scanner.
  • the light spot rotation scanner is composed of a motor, a rotating shaft, and a turntable mounted on the rotating shaft.
  • the light spot brightness controller includes a light spot brightness control circuit and a rotation.
  • the transformer is composed of a resolver mounted on a rotating shaft of a motor, and a light spot and a light spot brightness control circuit are fixed on the turntable.
  • the light spots are distributed on different radii of the turntable with the axis of the shaft as the center.
  • the light spot brightness control circuit is composed of The image storage processing circuit, the driving circuit, the turntable position sensor and the rectifying and stabilizing circuit are constituted.
  • the driving circuit and the turntable position sensor are respectively connected with the image storage processing circuit.
  • the rectifying and stabilizing circuit provides power for the image storage processing circuit and the driving circuit; It is a light emitting diode or a semiconductor laser or an intrinsic electroluminescence lamp; a lens for condensing the light emitted by the light spot can be added to the light spot; the device of the present invention can further include a lens, and the lens can project an image formed by scanning the light spot Imaging; resolver W can be replaced by a brush; the output driving part of the light spot brightness control circuit can also be a pulse width modulation circuit; the image storage processing circuit and the driving circuit of the light spot brightness control circuit can be placed separately, that is, the image storage processing circuit is mounted on a bracket The drive circuit is installed on the turntable, and the turntable position sensor is also installed on the bracket.
  • An image can be divided into multiple blocks, each of which is scanned out by a corresponding set of light spots.
  • the images formed by the scanning of multiple sets of light spots are combined to display the image completely.
  • Multiple light spot scanning imaging devices provided by the present invention are put together, and each light spot scanning imaging device scans and displays an image of a corresponding part to form a large light spot scanning imaging system.
  • the image displayed by using the light spot scanning imaging method and device provided by the present invention is obtained by rotating and scanning the light spot, and the image has high definition and high contrast, and the light weight structure of the present invention results in low cost.
  • Figure 1 -A is a schematic diagram of the light spot scanning imaging device of the present invention (front view);
  • Figure 1 -B is a schematic diagram of the light spot scanning imaging device of the present invention (side view);
  • Figure 2 is a block diagram of the light spot brightness control circuit ;
  • Figure 3 is a circuit diagram of a light spot brightness control circuit
  • FIG. 4 is a flowchart of the execution procedure.
  • Emitting diode 10 Image storage processing circuit 1 1 Drive circuit 12 Turntable position sensor 1 3
  • the light spot scanning imaging device includes a light spot 1, a light spot brightness controller, and a light spot rotation scanner.
  • the scanner is composed of a motor 9, a rotating shaft 8, and a turntable 2 mounted on the rotating shaft 8.
  • the light spot brightness controller is composed of a light spot brightness control circuit 3 and a resolver 6, 7.
  • the resolver 6, 7 is installed on the rotate shaft of the motor 9.
  • the resolvers 6, 7 are located between the turntable 2 and the motor 9, the light spot 1 and the light spot brightness control circuit 3 are fixed on the turntable 2, and the light spot 1 is distributed on the turntable with the axis of the rotation axis 8 as the center.
  • the receiving diode 4 is installed on the turntable 2
  • the bracket 5 supporting the motor is installed at a position opposite to the receiving diode 4.
  • the emitting diode 10, the light spot brightness control circuit 3 is composed of an image storage processing circuit 11, a driving circuit 12, a turntable position sensor 13 and a rectification and stabilization circuit 14, the driving circuit 12, the turntable position sensor 13 and the image respectively
  • the storage processing circuit 11 is connected in phase 1.
  • the rectification and stabilization circuit 14 provides power for the image storage processing circuit 11 and the driving circuit 12.
  • the light spot 1 is a light emitting diode or a semiconductor laser or an intrinsic electroluminescence lamp. In this embodiment, a light emitting diode is used. The number is 8.
  • a lens may be added to the light spot 1 to condense the light emitted by the light spot 1.
  • the device of the present invention may further include a lens, and the lens may project an image formed by scanning the light spot 1 through the lens; the resolvers 6, 7 may be powered by electricity Brush replacement; the output driving part of the light spot brightness control circuit 3 may also be a pulse width modulation circuit.
  • the motor 9 is mounted on the bracket 5, and the rotating shaft 8 is fixed on the rotating shaft of the motor 9 and rotated by the rotating shaft.
  • the rotating shaft 8 can also be fixed on the bracket 5 through the bearing.
  • the motor 9 can also be connected by a belt, a gear, or a transmission rod. Drive the rotating shaft 8 to rotate.
  • the turntable 2 is mounted on the rotation shaft 8 and can rotate with the rotation of the rotation shaft 8. The center of the circle of the turntable 2 coincides with the axis of the rotation shaft 8.
  • the resolvers 6, 7 are also installed on the rotation shaft 8.
  • the rotation transformer 6 and the rectification and stabilization circuit 14 phases are connected, the resolver 7 is connected to the image storage processing circuit 1 1, and the light spot 1 (the light emitting diode in this embodiment) is installed on the turntable 2 and is centered on the axis of the rotation shaft 8 and is distributed on different radii ( Figure 1-A provides a distribution diagram of the light emitting points on the turntable 2).
  • the light spot brightness control circuit 3 is fixed on the turntable 2.
  • the turntable position sensor 13 is composed of a pair of infrared emitting and receiving diodes, and the receiving diode 4 is fixed.
  • the emitting diode 10 is fixed on a bracket 5.
  • the resolver 6 couples the power source S to the rectification and stabilization circuit 14, the resolver 7 sends the image signal C to the serial input port P 3.0 of the single-chip microprocessor of the image storage processing circuit 1 1, and the motor 9
  • the rotation of the turntable 2 through the rotating shaft 8 causes the light spot 1 (the light emitting diode in this embodiment) and the receiving diode 4 to rotate.
  • the receiving diode 4 turns to a position corresponding to the transmitting diode 10, an angular position synchronization signal is generated. And sent to 11 ,? 3 7 on.
  • the microprocessor When the timer interrupt occurs, the microprocessor responds to the timer interrupt and executes the timer interrupt subroutine: first read the value set by the angular position counter and calculate based on this Get the coordinate position value of each light emitting point at this time, read the image brightness signal value from the storage area indicated by its coordinate position value, output the brightness signal value to the data register L ' 2 to U 9 , and set the angular position counter After adding 1, return to the main program.
  • the image signal is input through the serial port.
  • the microprocessor 1 ⁇ executes the serial port interrupt program: first read the image signal value input from the serial port to determine whether the first image signal If yes, the initial value of the coordinate position counter is set; if no, the value of the coordinate position counter is not changed, and then the image signal is stored in the storage area pointed by the coordinate position counter. After the coordinate position counter is incremented by 1, it returns to the main program.
  • the process of controlling the brightness change of the light spot by the microprocessor can be described as:
  • the microprocessor ⁇ stores the received image signal into a RAM area corresponding to the coordinate position in the chip, and synchronizes the signal according to the angular position. Number that appears in time, calculates the coordinate position of each spot was located, fetches the corresponding image luminance signal values from the RAM area corresponding to the coordinate position, to the data register Ll 2 ⁇ U g, a digital-U U to U 18 completes D / ⁇ digital-to-analog conversion and outputs to the operational amplifiers U 19 to U 26 of the power driving circuit 12 to control the brightness change of 1 ⁇ ⁇ 18 of light spot 1 so that the brightness of light spot 1 The change varies with the brightness of the pixels of the image to be displayed.
  • the light spot 1 on the turntable can scan a clear image.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

Cette invention a trait à une technique de formation d'image à balayage de spot, dans le cadre de laquelle, aux fins de l'obtention d'une image, les spots en rotation se trouvent sur différents rayons partant du même centre d'un cercle, leur luminosité correspondant, de manière synchrone, à celle des pixels respectifs de l'image. L'appareil comprend des spots, une unité de commande de luminosité de spot et un scanneur rotationnel de spot. Ce dernier est pourvu d'un moteur, d'un arbre et d'un plateau rotatif assujetti à l'arbre. L'unité de commande de luminosité de spot comprend un circuit de commande de la luminosité de spot et des transformateurs rotatifs. Le spot et le circuit de commande de la luminosité de spot sont fixés sur le plateau rotatif. Un circuit d'attaque du circuit de commande de luminosité de spot et un détecteur de position du plateau rotatif sont raccordés à un circuit de mémorisation et de traitement d'image.
PCT/CN1999/000111 1998-09-03 1999-08-11 Technique de formation d'image a balayage de spot et appareil correspondant WO2000014704A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU52768/99A AU5276899A (en) 1998-09-03 1999-08-11 Method and apparatus of spot scan image

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN98118763 1998-09-03
CN98118763.3 1998-09-03

Publications (1)

Publication Number Publication Date
WO2000014704A1 true WO2000014704A1 (fr) 2000-03-16

Family

ID=5226100

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN1999/000111 WO2000014704A1 (fr) 1998-09-03 1999-08-11 Technique de formation d'image a balayage de spot et appareil correspondant

Country Status (3)

Country Link
CN (1) CN1312934A (fr)
AU (1) AU5276899A (fr)
WO (1) WO2000014704A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102354480A (zh) * 2011-09-15 2012-02-15 梁友明 Led线阵旋转扫描圆盘屏幕

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301870A2 (fr) * 1987-07-30 1989-02-01 Kwok-Tung Yuen Dispositif d'affichage
EP0703558A1 (fr) * 1994-09-26 1996-03-27 Avix Inc. Display à balayage avec fonction d'acquisition d'image
EP0708431A2 (fr) * 1994-10-18 1996-04-24 Texas Instruments Incorporated Dispositif de projection utilisant un dispositif d'affichage à effet de champ
WO1997007493A1 (fr) * 1995-08-18 1997-02-27 Mikohn Gaming Corporation Systeme de presentation d'images animees de grandes dimensions a lampes a incandescence
WO1998013841A1 (fr) * 1996-09-27 1998-04-02 Siemens Matsushita Components Gmbh & Co. Kg Reseau passif sous forme de puce
WO1998015942A1 (fr) * 1996-10-09 1998-04-16 Frontline Display Limited Appareil d'affichage d'images

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301870A2 (fr) * 1987-07-30 1989-02-01 Kwok-Tung Yuen Dispositif d'affichage
EP0703558A1 (fr) * 1994-09-26 1996-03-27 Avix Inc. Display à balayage avec fonction d'acquisition d'image
EP0708431A2 (fr) * 1994-10-18 1996-04-24 Texas Instruments Incorporated Dispositif de projection utilisant un dispositif d'affichage à effet de champ
WO1997007493A1 (fr) * 1995-08-18 1997-02-27 Mikohn Gaming Corporation Systeme de presentation d'images animees de grandes dimensions a lampes a incandescence
WO1998013841A1 (fr) * 1996-09-27 1998-04-02 Siemens Matsushita Components Gmbh & Co. Kg Reseau passif sous forme de puce
WO1998015942A1 (fr) * 1996-10-09 1998-04-16 Frontline Display Limited Appareil d'affichage d'images

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102354480A (zh) * 2011-09-15 2012-02-15 梁友明 Led线阵旋转扫描圆盘屏幕
CN102354480B (zh) * 2011-09-15 2013-11-06 梁友明 Led线阵旋转扫描圆盘屏幕

Also Published As

Publication number Publication date
AU5276899A (en) 2000-03-27
CN1312934A (zh) 2001-09-12

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